Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code information BCM-U012587

Condition





Note! The diagnostic trouble code only applies to vehicles equipped with DSTC.

Diagnostic trouble code BCM-U012587 is generated if the brake control module (BCM) registers no signal or a defective signal from the AYC sensor.

Substitute value
- TC is blocked.
- SC is blocked.
- AYC is blocked.

Hint: For information on abbreviations: Brake system, abbreviations, B6324S5 Testing and Inspection

Possible source
- Contact resistance in the terminals
- Open circuit on the cables between the brake control module (BCM) and the AYC sensor.
- No AYC sensor connected.
- Internal malfunction in AYC sensor.

Note! This diagnostic trouble code (DTC) is not due to an internal hardware fault in the Brake control module (BCM) and must not be remedied by replacing the control module.

Fault symptom[s]
- General warning light on.
- Anti-spin is not operational.
- The stability function is not operational.
- The anti-skid function is not operational.